A Photo Trip Through Yellowstone National Park

Yellowstone National Park, now 145 years old, was the first national park established in the world. In 2016, the 2.2-million-acre park was visited by a record 4.2 million people who came to experience the wilderness, explore countless geothermal features, witness the gorgeous vistas, and try to catch a glimpse of the resident wildlife. Gathered here are a handful of compelling photos from Yellowstone’s past, as well as some from recent years.

Tourists view the Morning Glory hot spring in the Upper Geyser Basin of Yellowstone National Park, on May 14, 2016. The distinctive colors of the hot spring are due to bacteria that survive in the hot water, although its vivid color has changed from its original blue to yellow and green after an accumulation of coins and debris thrown by tourists.#